111020101120 has 80 divisors (see below), whose sum is σ = 267294039408. Its totient is φ = 44223528960.

The previous prime is 111020101109. The next prime is 111020101133. The reversal of 111020101120 is 21101020111.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 111020101097 and 111020101106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526987 + ... + 706933.

Almost surely, 2^111020101120 is an apocalyptic number.

111020101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111020101120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133647019704).

111020101120 is an abundant number, since it is smaller than the sum of its proper divisors (156273938288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111020101120 is an equidigital number, since it uses as much as digits as its factorization.

111020101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180211 (or 180195 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111020101120 its reverse (21101020111), we get a palindrome (132121121231).

The spelling of 111020101120 in words is "one hundred eleven billion, twenty million, one hundred one thousand, one hundred twenty".